Navigation Sensors •
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Manual
SPEED
LOG
RADAR
(measures
water speed)
SMG, if available
from any of
selected position
receiver
Alarm 2001
No Speed
Available
Speed
used by
the system
(Water
Speed)
Selected
Selected and value exist
Available
Selected and value exist
Not selected
Not selected
or no value
Not selected
or no value
Not available
The figure above shows the source of water speed used for drift calculation.
Manual
DRIFT
Drift
used by
the system
Selected
Smg/Cmg used by the system
Heading used by the system
Speed (water speed) used by the system
Not selected
Calculator
Drift used by the System is shown SENSOR Other Sheet. In this case it is from manual drift). Following
alternatives are available: (log) if value is based on log or dual axis log; (posit) if value is based on position sensor;
(filter) if value based on Kalman Filter; (man) if value is based on manual entry.
No speed or course available
It is possible that user has not selected any speed or course sensors, or that the selected sensors doesn't have any
valid values. This kind of a situation is critical for the system, because it cannot perform even dead reckoning.
When no speed source is available the system generates alarm "2001 No speed available". When no course source
is available the system generates alarm " 2002 No course available".
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